岩爆岩石断口扫描电镜分析及岩爆渐进破坏过程

Analysis of Fractured Face of Rockburst With Scanning Electron Microscope and Its Progressive Failure Process

本文应用扫描电子显微镜,以标准应力作用下的典型断口为图谱,对照分析隧洞岩爆岩石断口形貌特征及力学属性,并结合隧洞岩爆观测,首次提出了前人曾经重视但未能解决的岩爆渐进破坏过程,进而论证了岩爆形成机理。

The pattern and mechanical properties of rock fractured face of rockburst in the tunnel are analyzed with SEM and compared with typical micrograph of fractured faces that were made under standard stress. The analysis has been linleed with geological results of rock bursts observed in the tunnel, so that at the first time the progressive failure process of rockburst which was paied attention to but was not solved by the rock mechanics reserch workers was proposed and the mechanism of rockburst was pointed out by the author.